Plastic Omnium Advanced Innovation and Research

Inergy Automotive Systems Research

Mihai Baja

Antoine Chaussinand

Bjorn Criel

David Hill

Scott McCleary

Jurgen Dedeurwaerder

Josh Butler

Jürgen Dedeurwaerder

The invention relates to a leak detection system on board of a vehicle comprising a fuel tank (), a filler pipe (), a venting line () for recirculating fuel vapors from the tank to the filler pipe, said system having a combination pressure and temperature sensor mounted in the vapor dome of the fuel tank, and a pressure sensor located in the recirculation line above the highest possible liquid level that could be present in the recirculation line and to methods to detect said leak.

Leak detection system

A method for controlling a filling operation of a vehicular liquid storage system including a tank equipped with a filler pipe and a shut-off valve, the method including detecting the start of a refilling event; while the shut-off valve is open, observing whether a measured fill level of the tank has reached a predetermined fill level; if the predetermined fill level has been reached, performing the following steps: closing the shut-off valve to induce a shut-off of a filling nozzle; when a first pressure criterion is met, opening the shut-off valve; and when a second pressure criterion is met, closing the shut-off valve. The second pressure criterion includes a decrease of pressure inside the tank below a predetermined pressure level.

Method and system for controlling a filling operation of a vehicular liquid storage system

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Brussels, Belgium

Mihai Baja